Home / 65,850.05-98,797.25-20,878.74

Finding the Fourth Proportional to 65,850.05, 98,797.25 and 20,878.74

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Solution

The fourth proportional to 65,850.05, 98,797.25 and 20,878.74 is: 31,325.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.05 : 98,797.25 = 20,878.74 : x
  2. Step 2: Convert to fraction form
    65,850.05/98,797.25 = 20,878.74/x
  3. Step 3: Cross multiply
    65,850.05x = 98,797.25 × 20,878.74
  4. Step 4: Simplify right side
    65,850.05x = 2,062,761,991.07
  5. Step 5: Solve for x
    x = 2,062,761,991.07/65,850.05
  6. Step 6: Final answer
    x = 31,325.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.